ZF 4642.311.011 SPUR GEAR for WG150 | OEM Genuine Part

Overview

The ZF 4642.311.011 SPUR GEAR is a critical power-transfer component engineered specifically for the WG150 series transmission. This OEM genuine part sits within the intermediate shaft assembly, where it engages directly with the main drive gear to facilitate smooth torque delivery and precise rotational synchronization. As a hardened spur gear, it ensures minimal backlash and consistent load distribution across the gear train. The SKU 4642.311.011 is a direct replacement for factory-installed units, guaranteeing exact fitment and durability under high-stress industrial applications. When paired with a properly sealed 4642101047: TRANSMISSION HOUSING, this gear maintains optimal alignment and reduces wear on adjacent components.

Symptoms of Failure

• Whining or grinding noise during gear engagement: Worn teeth on the spur gear create irregular contact patterns, producing audible metallic sounds that intensify under load.
• Vibration through the drivetrain: As the gear surface degrades, imbalance in the rotating assembly causes noticeable shuddering, especially at higher RPMs.
• Intermittent power loss or slipping: Damaged gear teeth fail to maintain positive engagement, leading to momentary torque interruptions during acceleration or hill climbs.
• Metallic debris in transmission fluid: Flaking or chipped gear material contaminates the oil, often visible during routine fluid changes as fine silver particles.

Technical Specifications

Compatibility

This spur gear is primarily designed for the ZF WG150 series transmission, but it also fits select variants within the WG family. Based on its tooth profile and shaft diameter, it is compatible with the following ZF models: WG150, WG180, WG200, and WG250 (when used in intermediate shaft positions). Always verify the gear count and bore size against your existing assembly. For proper installation, ensure the 4642301207: TRANSMISSION HOUSING is free of cracks and the 0730365067: TYPE PLATE matches your unit’s serial number. Secure the gear using a 0631311009: GROOVED STUD to prevent axial movement during operation.

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